@COMMENT{Imported form SteinLib http://elib.zib.de/steinlib}
@INCOLLECTION{War97,
   author      = "D.M. Warme",
   title       = "A new exact algorithm for rectilinear {Steiner} trees",
   booktitle   = "Network Design: Connectivity and Facilities Location: DIMACS Workshop April 28-30, 1997",
   editor      = "P.M. Pardalos and D.-Z. Du",
   publisher   = "American Mathematical Society",
   year        = "1997",
   pages       = "357--395",
}